regarding the prisoner exchange missions - I've read this thread as well as searched for other similar topics, but I'm still not quite sure about what needs to be accomoplished.
I'm currently on one of these quests where I've been asked by the Nord king to capture 5 Swadian militia in exchange for 5 Nord prisoners. So, I engage in a couple of rather large battles with Swadian Lords, and have captured 5 Swadian military units (various types). Now what? I went back and spoke to the King. There's nothing in the dialog options that says I've completed the mission. Do I have to capture specific unit types? I'm a little confused at this point and I'm unsure as to what I'm missing.